Help With Sleep TrainingCould be related to temperature changes being away from your body heat. It seems pretty normal to me - our kids were similar at that age; just make sure they're warm and it'll help the transition away from being carried.

Stuttering SuddenlyThe child may also just be experimenting or playing around with speech patterns - our first child did this sort of thing around this age, where he picked up this sort speaking pattern from his peers because he thought it was neat.